Tire structure



v A. B. BROLUSKA TIRE STRUCTURE Filed April v, 1925. s sheets-sheet 2 INVENTOR. l AME/ D .Z5/EOL usm ATTORNEY.

A. B. BRQLUSKA TIRE STRUCTURE Filed April '7, 1925 5 sheets-sheet INVENTOR. MEL 5. EE0/ J5/1A A TTORNEY Patented lJari. 29,A 1924.

PATENT OFFICE.

AMEL B. BROLUSKA, OF DETROIT. MICHIGAN.

TIRE STRUCTURE.

4Application led April 7, I

To all whom it may concern t eA following to be forma part Be it known that I, Arum. l5. BimLUsKA, a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan,

ave invented a certain-new and useful Ini- 'provenient iu Tire Strueturesgand declare a full, clear, 'and exact escr'iption of the same, such as will enable ers skilled in the art to which it pertains make and use tl e same,reference being had'to thev accompanying drawings, which of this specification.l

1s invention relates totire structures Y andthe object of the invention is to provide ltion wears away the fabric and a tire structure 1n which friction 4between the friction and thus decrease the life of the tire. In the -usulal tire construction the different layers Iof' cord or -fabricrub together due to the stress and' strain impacted to lthe 'tire during travel and inmoving overobstaclesv such as stones, rough roads, etc. 'lhe slight movement f the different layers of fabric caused in this manner lproduces heat within the'tirevdne to the friction between the layersof vcord or fabric and this heatl and fricrubber withi 1n the tire andeventually results in the t ire sob U lowing out. The principal object of-this invention is to provide a tire in which the sob 4tion is to provide a different layers of fabric are separated b v an elastic rubber hase which is sulliciently flexible s othat one layer of fabric may move in relation to the others without friction7 the layers of rubber forming a cushion between the layers of fabric which is solliciently flexible to allow any such movement of the fabric. Another .object of the inventire built up from strips of fabric or cords laid diagonally across the tread of the tire, the strips of fabric or cords being separated on all sides from the next adjacent strip by a flexible rubber cushion, Another object'of the invention is to pro- -vlde -a puncture proof tire formed 'from flexiblecomposition in cords are embedded th'e being vulcanized and eing flexible so as to give with the fabric. Another object of the invention is. to provide @series of puncture proof plates carried by strips of a tough, which the' fabric or composition strlps` described and claimed l are attained is shown n1 of. puncture complete casing taken on .cord or fabric l wh 1923. Serial No. 630,493.

the stri-ps of cords-or fabric having wires embedded therein so that a nail or the like on entering the tire is turned by' the wires and cannot enter the interior of the casing. These objects and the several novel features of the invention are hereinafter more fully' and the preferred form of construction by which these objects the accompanying drawings in which- Fig. l is a view of the ti're with the tread removed to show the position of the cord or fabric strips. l

rig. e l"ig..l.

Fig. 3 is a plan view of one type otpuucture proofstri p partly broken away to show the cord or fabricl `asc.

Fig. 4 is a similar view of another type proof strip.Y lig. :i is a section taken on line 5-5of Fig. 4.

Fig. 6 is-a transverse section through the line 6`6 of Fig. 1. Fig. 7 is a section taken on line '(7 of Fig. e Fig. 8 is a section taken longitudinally of an alternative type ofpnncture proof strip. Fig. 9 is a plan view of the alternative type of stri i.

'lbc tire is bniltnp by means of strips-of ich are laid diagonally across the tread ol' the Ilire and the strips are separated Irv-cushion rubber 2 shown in Figs. l` L. and 7 which is vulcanized to the fabric strips afterthe tire is completed. A layer of these strips is positioned as shown and then a second layer of strips 3 is ositioned over the first layer end extend in the saine direction, the 4second layer covering the spaces between the first laver as shown in dotted lilies in Fig. 1. After these two layers havc-becn placed in position another layer of strips is laid over the first two layers and ext-end diagonally across `the tread of the tire in the second layer being positioned over this layer to cover the joints between the strips and the layers of fabric being separated by layers of rubber 2 as shown in Figs. l, 2, 6 and 7. As shown in Fig. 6 the interior: of the easing is formed of cushion rubber 4 and cord or.

is a sectionV taken on-line 2-2 ofl opposite direction, a

of strips fabric, strips o similar to those shown in Fig. l are embedded in this rubber as shown in Figs. 6 and 7.-

The Vsimplest. and cheapest form of puncture proof strip is shown in .l*`ig.f3 in which a cord or fabric strip 6 is provided and a very tough flexiblel puncture proof composition 8 is pressed on opposite sides f the cord or fabric strip 6 and is then vulcanized to se-r cure the composition to the strip and to toughen the composition, the composition being then sufficiently. tough to resist lpuncture. The surface of the composition on opposite sides is provided with depressions as shown to give a better hold for the rubber of the tire which is vulcanized thereto after the casing is completed. l

Another form of puncture proof strip is indicated in Figs. 4 and V5. In this frmone vor nore layers of cords or fabric 47 are prvided Separated by alternate layers of rub ber and a pliable puncture proof composition '14 4similar to ,the composition 8 shown the fabric strips-7 and containsl the wires 13 which are coated with asbestos'and rubber and are embedded in the composition 14, the Wires 13 extending crosswise of the strips.V .-NThect'imposition` 14 is 'a vulcanf izable composition and these strips are vul-.

canized to harden and toughen the composition 14;'without decreasing the flexibility theref,`J the vulcanizing process securing the composition 14 to the opposite sides of the vcoi-dor., fabric strip 7 and securing the wires 13 in sition therein. The composition may exten over uportion only of the strips 7 as shown 'in Fig. 6 to protect'thetread of the casing or may be carried to the rim of the casing throughout the length of the fabric strips to protect theftire on all sides. These puncture proof strips are positioned in the easing-in the same manner as the strips shown in Fig. 1, two. layers of strips. beingv wound diagonally so that.' the second 'layer of strips may cover the joints between the A strips of theiirst layer.I The diterent series of wires 13 extending across 'these puncture proof strips are arranged in staggered relation.as shown in Fig- 5 so that an instrument tending to' puncture .the tire strikes,

the Awires and is turned ont of' its course. the

instrument heilig thus bentand turned back without entering the interior of the casing. After the puncture proof stripsdiave been laid'in position a. series ot'y strips of cord or fabric -1 and 3 shown in Figs. v1` 2. 6 and 7 v.are laid thereover and the trend 11 is put o`u, at which time the entire casing is vulcanized which secures the parts together and `the rubber lAarts being vulcanized tiexibly secure the several parts of the tiie together. When the puncture proof strips are laid on diagonally of the tire'the wires llrextend diagonally to the tread ot' the tir*y but the pressed onfopposte sides of.

wiresare of small diameter and are sufh'cicntly short due to thenarrowness otl the strifpsvthat they do not bend during u1ovenient otl the tire over the ground and these wires are'covered with rubber and asbestos and the composition in which they are einbedded is sulliciently hard to hold the wires iu place so that the)v cannot become loose in the puncture proof"stripsA In Figs. 8 and 9 an alternative tornrofl construction is shown in which a series ot puncture proof plates [t5 arecmbedded'in a rubber base 16 plates protect the tread ot' the tire iront b0- ing punctured. are formed of a series of layers ot' cords or fabric 1T separated b v alternate' layers of rubber and the rubber base 1G shown in Fig. 8 is formed on opposite sides ot' thc fabric or cord strips-17 and the puncture proof plates 15' are insctrted in the recesses 18 'in the rubbeibase `16 asshown. The cord or fabric strip 1T. in the lnmctureproof strips is carried around to the base of the tire and holds the puncture vproof portion -in poand theI puncture prooi"4 Tliese puncture prooi' stripssitionbetween the interior of .the casing.

series of strips. These puncture proof stripsl 'are also embedded in the rubber and the strips 1 and 3 are laid thereover as shown -iu Figs. 6 and 7. When the casing has been thus built up itis enclosed within the rubber tread 1,1 containing the cable bases 12 and the 'easing is then 'vulcanized to secure' the parts together in the rubber. The plates 15.

which are embedded in the puncture proof stripsare formed froina vulcauizable composition smular to the puncture proof compositlon 8 and are hardened and toughened by `vulcanizing before' being embedded in the strips. As willbe seen from Fig. S the plates 15 on opposite sides ot' the strip are arranged in staggered relation sothat the' plates on one side are positioned opposite the spaces' betw'ecn the plates on the oppol site side and thus prevent the possibilitygot' a puncturing inst'runu-nt passing through these-.puncture proof strips` ltdesrred wires may be embedded in these plates similar to the wires 13 in Fig.' 5 but it the plates are correctly vulcanized this is not necessary.

By this construction' cach cord or fabricstrip 1 and 3 is surrouinled with rubber so that when vulcanized the strips may give or yield slightly in relation to each other which will stretch the surrounding rubber base slightly but will not produce friction. between thc ditfcreut parts." The vpuncture proof strips arc also completely surrounded with rubber which when vulcanized allows movement. ot' these strips in relation to cachother without any deleteriousetl'cct. ln this manner a casing is formed -which will readily give to any type `of road shock but which will not produce interiorheat by friction and thus thelifcv of the tire is lengthened and the tire cannot be readily punctured due tol the pliiict'uriproof strips embodied thereiiiLi .tlius preventing internal-heat and friction and increasing the elasticity of the tire the possibility of-blowoiits is greatly reduced iifmnotv prevented. i Y

The structure of a tire disclosed in this' application differsA from that disclosed in my co-pending application SerialNo. 630,- 231 particularly in the manner in which tlie 4puncture resisting elements are 'arranged relative tothe fabric.

Fromv the foregoingdescription itv becomes evidentl that the device is very simple and eflicient in operation, is puncture proof and at the same ytime is more flexible and resilient than the usual` tire and provides a tire structure which accomplishestlie objects described. Y f

Having thus fullydescribed my inve'n-. tion its utility and m'ode of operation what I claim and desire to secure by Letters Pat-1Y` ent of the United States isf 1. A tire structure comprising several layers of cord or fabric strips extending diagonally across the tread of the tirelfrom rim to rim, each 'cord'or fabric strip being separately embedded in rubber and spaced from adjacent strips by an interyening wallA of rubber, av series of flexible puncture proof strips comprising a. cord or fabric base having a rubber surfacing on opposite sides, a series of flexible puncture proof I. plates of a vulcanizable composition embeddedin the rubber of the puncture proof strips, the plates on the `one side of the strip being opposite the spaces vbetween the plates on the opposite side of the strip and a rubber tread for the tire, the tire being vulcanized to yieldably secure the several parts together.

2. A vtire structure comprising several layers of cord or fabric strips extending diagonally across the tread of the tire and separately embedded in rubber, a series of puncture proof strips having;r a rubber covering, a series of plates of a vulcanizedcomposition embedded in the rubber. of the puncture proof strips -and a rubbei` tread for tlietire, the tire being vulcanized to secure the several' parts together. y

' 3. A tire structure comprising a series of cord or fabric strips extending` diagonally across tbe tread of the tire and separately embedded in rubber, a second series of cord or fabric strips separately embedded in rubber and covering the joints between the strips of the first series, a third series of cord or fabric strips separately embedded in rubber and extending diagonally across the treafl of the tire at an angle to the first and second series, a fourth series of cord composition sepa-rate y embedded in rubber and extending diagonally across the tread of the tire, a second series of flexible puncture proof strips covering the joints between the puncture proof strips of the first series aiid a rubber tread for the tire, the tire being vulcanized to allow yielda'bl'e mplvement of the strips in relation to each ot er.

4. A tire structure comprising a series of cord or fabric strips extending` diagonally across the tread of the tire and separately 'embedded in rubber, a Second series of cord or fabric strips covering the joints between the strips of the first series separately embedded in rubber sotlia-t the strips are separated on all sides by an intervening wall rubber,.a third series of cordA or fabric lstrips separately embedded inrubber and extending diagonally across the tread of the tire at an angle to tbe first and second series, a fourth series of strips separatelyembedded in' rubber coveringl the joints between the strips vof the third series, and a rubber tread covering the cord or fabric strips, the tire being vulcanized to yieldably secure the several parts together.

5. A tire structure comprising several layers of cord or fabric strips extending diagonally across the tread of the tire, each cord or fabric 'strip being separately embedded in rubber and spaced fromadjacent strips "by an intervening wall of rubber, a

series of. flexible vulcanizable puncture proof strips extending diagonally across the 'tread of the tire-and separately embedded in rubber, the .second series of ypuncture'proof strips covering' the joints between the strips of the fii'st series and a tread for the casing thus formed, the tire being,r yulcanized' to yieldably secure the several parts together.

G. tire structure comprising several layeifl `of cord or fabric strips extendino' diagonally across the tread of the tire, eacli cord or fabric strip being separately em-4 bedded in rubber and spaced from the adjacent strips by an Aintervening wall of rubber, a; series of puncture proof strips of a vulcanized composition extending diagonally across the tread of the tire, tlie` puncture proof strips being separately em.- bedde-d in rubber, a series of short' wires covered with rubber and asbestos and embedded in the composition of the puncture proof strips and a rubber tread for the tire, the tire beingr vulcanized to yieldably secure 'the several parts together.

7. A tire structure comprisingr several 1 vcrs of wird or fabric .strips extending; di-

agonally across the tread' of fthe tire, each cord orfabric strip' being Seprately embedded in rubber, a. seriesA of lie-:cible puncture proof strips of a vulcanized composition extending diagonallyacross the tread of the tlre and being encased inrubber, a'

series of short;y wires embedded in the co1nposition of thepungture' proof strips and extending cross-wise of the strips and. a rubber tread: for the tire, the tire being 10 vulcanized bo allow yieldable movement of' the stripsin relation to'each other.

In testnnony whereof I sign this speci-' ficetlon/ AMEL B. ,BRUL'USKA- 

